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How many miles on 5.7L/4L60?


tmas79
01-07-2008, 03:47 PM
I have 153K on my 1996 single-cab, short bed Z71. It sounds like many people with this many miles have already replaced both the engine and transmission, I'm worried/wondering how much longer I have on both.

sechracer
01-09-2008, 08:15 PM
I have 153K on my 1996 single-cab, short bed Z71. It sounds like many people with this many miles have already replaced both the engine and transmission, I'm worried/wondering how much longer I have on both.

I am at 185K on my 97 with a 5.0 and the same tranny. Truck runs great still, no problems. I do believe yours is a vortec motor, so watch the intake gaskets, they like to leak. First sign of this would be unexplainable coolant loss.

blackhawk5177
01-23-2008, 01:44 PM
got 296 on my and still rolling

463
02-01-2008, 08:11 PM
620000 Kilometers = 385,250. Miles on my buddys reg cab 1990. trans changed a 400000 km or 250000 miles eng still running good.

fuzzypuppy
02-21-2008, 07:17 PM
I have 220.000 k on the orig engine 91, 5.7, runs great, very little oil loss between changes, "valve guides" 1/4 quart=3k miles.
new 4l80e at 102.000 k,

tinstar
03-17-2008, 07:13 AM
I have 324K on my 98.

Same engine and trans.

Runs great!

astralepic
05-11-2008, 03:12 PM
262,000 on original motor and tranny. Properly maintained since purchased. As long as you take care of it, it will take care of you. I'm convinced!

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